Living few metres from Deodato Art Gallery, I have always loved their displays.
The kind, gentle and expert staff (Bea, Bea and Marzia overall) are able to thrill visitors describing the story behind each artwork displayed, from Koons to Warhol, Hirst, Haring, Tomoko, Brainwash, Britto and some interesting Italian names among which Lodola, Vullo and Mr.Savethewall.
And more important, you can start a collection without the necessity to sell your house or squander your savings... So go there and enjoy a comfortable immersion in contemporary art.